Journal ArticleDOI
Effect of reverberation and noise on the intelligibility of sentences in cases of presbyacusis.
A. J. Duquesnoy,R. Plomp +1 more
TLDR
The monaural Speech-Reception Threshold for sentences was investigated under five reverberation conditions at a constant noise level and a model of SRT as a function of noise level can be combined with the STI model and can thus include the effect of reverberation.Abstract:
For 80 male subjects (age 60–90) and 30 female subjects (age 71–89) the monaural Speech–Reception Threshold (SRT) for sentences was investigated under five reverberation conditions at a constant noise level. The reverberation times used were between 0 and 2.3 s. The noise, with the long‐term average speech spectrum, had a level of 52.5 dBA. Each subject was assigned to one of several subgroups formed on the basis of the maximum reverberation time at which the subject was still able to understand the sentences correctly. The mean SRTs and the standard deviations are given, per subgroup, as a function of reverberation time. It is shown that, for each subgroup, the SRT in different reverberant sound fields can be expressed as a single number, namely the required Speech Transmission Index (STI) as introduced in room acoustics by Houtgast and Steeneken [Acustica 28, 66–73 (1973)]. Furthermore, it is shown that a model of SRT as a function of noise level, developed by Plomp [J. Acoust. Soc. Am. 63, 533–549 (197...read more
Citations
More filters
Journal ArticleDOI
Effect of temporal envelope smearing on speech reception
TL;DR: The effect of smearing the temporal envelope on the speech-reception threshold (SRT) for sentences in noise and on phoneme identification was investigated for normal-hearing listeners, showing a severe reduction in sentence intelligibility for narrow processing bands at low cutoff frequencies.
Journal ArticleDOI
Sentences for Testing Speech Intelligibility in Noise
TL;DR: A list of ten spoken Swedish sentences was computer edited to obtain new lists with exactly the same content of sound, but with new sentences, to investigate the equality in intelligibility of some of the lists.
Journal ArticleDOI
Representation of the temporal envelope of sounds in the human brain
Anne-Lise Giraud,Christian Lorenzi,John Ashburner,Jocelyne Wable,Ingrid S. Johnsrude,Richard S. J. Frackowiak,Andreas Kleinschmidt +6 more
TL;DR: Overall, this study shows that the temporal envelope of sounds is processed by both distinct (hierarchically organized series of filters) and shared (high and low AM frequencies eliciting different responses at the same cortical locus) neural substrates.
Journal ArticleDOI
Hearing loss and aging: new research findings and clinical implications
TL;DR: Recent research on problems in auditory temporal processing by elderly listeners as assessed in speech perception experiments using temporally altered signals and in psycho-acoustic experiments of duration and rhythm discrimination for simple and complex signals is reviewed.
Journal ArticleDOI
Hearing Loss, Aging, and Speech Perception in Reverberation and Noise
Karen S. Helfer,Laura Ann Wilber +1 more
TL;DR: Results suggest that both age and amount ofpure-tone hearing loss contribute to senescent changes in the ability to understand noisy, reverberant speech: pure-tone threshold and age were correlated negatively with performance in reverberation plus noise, although age and pure- tone hearing loss were not correlated with each other.
Related Papers (5)
A review of the MTF concept in room acoustics and its use for estimating speech intelligibility in auditoria
A physical method for measuring speech-transmission quality
Improving the reliability of testing the speech reception threshold for sentences
R Plomp,A M Mimpen +1 more